Builder mechanism for spinning or winding machines



1929- H. A. LEONARD BUILDER 'ECHANISM FOR SPINNING 0R WINDING MACHINES Filed Feb. 25, 1928 2 Sheets-Sheet /N VENTO R ATTORNEY Nov. 5,- 1929. H. A. LEONARD BUILDER MECHANISM FOR SPINNING OR WINDING MACHINES Filed Feb. 25, 1928 2' Sneet s-She'at 2 F" ;2 no 104 Y 106 1a: J I 100 E l T -10? 115 i\\.

//\/ VENTOR" Z By ATToR/vm Patented Nov. 5, 1929 UNITED STATES PATENT OFFICE,

HARRY A. LEONARD, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COREOR-ATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE BUILDER MECHANISM FOR SPINNING OR WINDING MACHINES Application filed February 25, 1928. Serial No. 257,088.

This invention relates to machines for winding yarn on yarn receivers or bobbins and is more particularly directed to machines for winding the yarn upon such receivers or bobbins for use as weft or filling in feeler looms.

t is now the ordinary practice to provide feeler looms with replenishing mechanism for changing the filling carrier or bobbin in 19 the shuttle prior to complete exhaustion of filling, and in order that perfect cloth may be woven it is necessary that the last pick of filling placed in the shed prior to replenishment shall be a full pick and laid under proper tension. These'conditions have been recognized and the yarn receivers or bobbins have been supplied with preliminary windings, sometimes termed a bunch, which is A partly overlaid by the service windings. In

some cases, also. the bunch has been laid upon the yarn receivers with short traverse and then the winding operation to complete the wound yarn receivers is continued with serv- W ice or longer traverse.

The present invention is a further development of the winding or spinning machine which forms the subject-matter of the Harry A. Leonard Patent, No. 1,412,808, dated April 11, 1922. In the machine of the Leonard patent the windings or bunch are laid upon the yarn receivers without traverse, and means are provided to automatically pass from the bunch building operation to service a traverse on completion of the bunch. In the present invention this same condition exists but instead of winding the bunch without traverse, a bunch building mechanism is provided for winding the bunch with a short traverse and upon completion of the bunch to automatically pass to service or longer traverse to complete the wound yarn receivers and thereby insure a final perfect pick prior to the change of filling.

A further important feature of the present invention consists in a bunch building mechanism adapted to build the bunch with a short traverse which may be varied in length, and r associated. with the bunch building mechanism is the main traverse mechanism which is automatically thrown into action. upon completion of the bunch.

A further feature of the present invention consists in a single driving shaft between the service traverse mechanism and the bunch building mechanism, which driving shaft may be shifted from operative relation with either. I r

The invention and novel features thereof and new combination of parts will be herein- 0 after described in connection with the ac- I companying drawings which illustrate a good practical form of the invention,

In the drawings:

Fig. 1 is a side elevation of a winding or spinning machine containing the present invention, some of the parts being broken away for clearness of illustration;

Fig. 2 is an enlarged sectional view on the line 22 of Fig. 1; I

Fig. 3 is a face view of the link wheel;

Fig. 4 is an enlarged View in side elevation with parts broken away showing the bunch builder mechanism in action and the service traverse mechanism idle or at rest; and

Fig. Sis a section on the line 55 of Fig. 4.

In the drawings the invention is illustrated as embodied in a spinning or winding machine of the Howard & Bullough type, and while the invention is especially advantageous in connection with this type of machine, it may be used advantageously with other forms of spinning or winding machines.

The machine frame 1 may be of usual construction and extending longitudinally between the end frames thereof is the spindle supporting rail 2 and the tie rail 3. The spindle rail 2 is adapted to support the spindles for rotating the yarn receivers or bobbins 4 on which the yarn is to be wound. As the 9 yarn is wound upon the yarn receivers or bobbins it is directed thereto by yarn guides which, in the present instance, consist of a ring rail carrying one or more rings 6 and the usual travellers 7 through which the yarn 95 passes from a source of supply to the yarn receivers. Extending from the yarn guiding means or ring rail 5 are the lifter rods 8, the lower ends of which rests upon rolls, such as 9, carried by one or more arms 10 pivotally mounted on the shaft 11 carried by the bracket 12, and since the weight of the yarn guiding means or ring rail is considerable, it is usual to counter-balance the parts by a weight (not shown) mounted on an arm 13. These features are as usual and need no further description.

Mounted upon the shaft 11 in fixed relation with the arm 10 is the upwardly extending arm 14 to which the traversing mechanism is connected at 15, and these parts may be as usual, the construction being such that by movement of the arm 1% the yarn guides may be traversed longitudinally of the yarn receivers.

Mounted on the machine frame is the build-- or arm shaft 16 from which rises the builder arm 17, and pivotally connected to the builder arm 17 at 18 is the auxiliary builder arm 19, which in effect forms part of the builder arm. The relation between the builder arm 17 and the auxiliary builder arm 19 is regulated by an adjusting screw 20. V

The arm 19 carries a roller 21 which bears upon the builder cam 22, the construction being such that upon rotation of the builder cam its cam surface 23 will cause the builder arm to oscillate, as usual.

The builder arm 17 carries the builder screw 26, as usual, and a travelling head or nut 27 is threaded to the screw. Connected to the head or nut 27 is the flexible connection or chain 28 which passes over a roll 29 on the builder arm and extends laterally to a link 30 connected to the arm 14. From this construction it will be evident that upon rotation of the builder cam the yarn guides will be moved longitudinally of the yarn receivers to lay'the yarn thereon by service traverse, all substantially as shown and more fully described in the Leonard patent hereinbefore mentioned.

The builder screw 26 has secured to the lower end the bevelled gear 31 which meshes with abevelled gear 32 carried by the pick shaft 33. The pick shaft 33 has the pick wheel 35 which is given a step-by-step movement during the windin operation to turn the screw and vary the position of traverse of the yarn guides. It has not been thought necessary to further describe these parts in detail because they are all shown and described in the Leonard patent above mentioned.

The chain wheel 37 is actuated by the pick wheel and has secured to it one end of a chain or flexible member 41 which passes around a guide 12 mounted on the machine frame and extends downwardly therefrom about a roll 44 and secured at a fixed point, as a5, which in the present instance is the bearing for the cam shaft 16. This mechanism may also be the same as tnat more fully described in the Leonard patent.

The builder cam 22 is mounted upon the cam shaft 16 and has depressions 47, of which there may be any suitable number. W hen the roll 21 of the builder arm is in contact with a depression 47 and the head or nut 27 on the builder arm is in its upper position, the yarn guiding means or ring rail is at its lowest position and should the machine be operated at this time the yarn will be laid upon the yarn receivers adjacent the head of the receivers.

Secured to the cam shaft 16 is the worm wheel 18 through which a train of mechanism operates to actuate the builder cam 22.

Rotatably mounted in the sleeves 19 and 50 is the driving shaft 51. The bearing 50 is mounted on the bracket 52 for rocking movement about its pivotal connection therewith, at 53. The bearing 19 is carried by the arms 5 1 which are secured to the shaft 55 which extends transversely of the machine, the construction being such that by rotative movement of the shaft 55 in a contra-clockwise direction, looking at Figs. 1 and 4, the drive shaft 51 may be shifted out of operative connection with the worm wheel a8 and, as will presently be described, this shift movement of the single drive shaft is made effective to render operative the bunch builder mechanism.

The shaft 55 is normally under the influence of the w ighted arm 58, as more fully described in the Leonard patent above mentioned, and when the arm is in its lowered position, as indicated in Fig. 1, and the service traverse is being laid, the weight may be supported by a buffer pin 62.

Secured to the shaft 51 is the worm 66 which as hereinbefore stated is adapted to be engaged with and disengaged from the cam operating worm wheel 4 3, the construction being such that when the Weighted arm 58 is in its lowered position the driving shaft 51 will be lowered to cause the worm 66 to engage the worm wheel 48; but should the weight 60 be lifted, the bearing 49 carrying one end of the drive shaft 51 will likewise be lifted through the arms 54: and the worm 66 will be disengaged from the cam operating worm wheel 18 and the builder cam will then be freed from its operating means. Inasmuch as the roll 21 of the builder arm rests against the builder cam 22, when the builder cam 22 is freed from 'its operating means it will be caused to rotate to place the roll 21 in one of the depressions a? of the builder cam, with the result that should a punch be now placed upon the yarn receivers it will occupy a position close or adjacent to the heads of the yarn receivers. in order that the driving shaft 51 may be manipulated to disengage its driving connection with the builder cam, the shaft 55 has secured thereto the operating arm 69 which is i L1 L 4., .L provided wnn a foot portion 41 so Lilith iotation of the shaft 55 to disengage the driving shaft from operative relation with the builder cam may be efie'ctive by manual control,

' 106, but ordinarily three will be. sufficient, as

" dicated in Fig; 4.

as more clearly and fully described in the Leonard patent.

From the construction thus far described it will be apparent that during the operative relation between the driving shaft and the builder cam, the yarn guides will be moved longitudinally of theyarn receivers with service traverse to lay the yarn. thereon, but when the driving shaft 51 is moved from operative engagement with thebuilder cam, the latter is freed for movement under the stress of the builder arm 19 which thereupon acts: to turn the builder cam with the roll 21 in a depressionv of the cam. At this time if the head or nut 27 is inv its upper position on the builder screw 26, the yarn guides will be at their lowest position, and advantage is taken of this fact to: lay the bunch upon the yarn receivers at or adjacent the head of the yarn receivers.

Secured to the machine frame is a bracket in the bearing 101 of which is mounted the bunch builder shaft. 102 which has a toothed wheel 103secured' thereto for rotative movement therewith.v This may be readily effected by key and slot connection, as shown at 104. Thetoothed wheel 10301 bunch buildor worm wheel, as itmay'be ealled, is located directly above the worm: 66 of the. driving shaft 51, so that upon upward movement of the driving shaft through the means hereinbefore described, the worm-66 is brought into operative engagement with the toothed wheel or'bunch builder worm wheel 103, as in Secured to the bunch builder shaft 102 is the link wheel. 105* which is provided with a. series of openings: 106 a different radial dis tances from the axis of the link wheel 105; There maybe any number of these openings indicated in the: drawings, 3.

Secured. to the. link; wheel: 105 is a link 10-? which extends downwardly from the link wheel and is engaged at its. lower end 108 with one arm 109' of a bell crank lever pivotally'mounted at 110 on a suitable support of the machine frame- The other arm 111 of the bell crank lever carries a pin or roll 1.12 which: is adapted to engage the upper end portion of a punch builder arm 113 secured by a set screw or other suitable means 114 to the buildor arm shaft 16, the construct-ionbeing such that when the parts are in operative relation,

as indicated in: Fig. 4, and the bunch is being laid upon the yarn receivers, the rotation of the bunch builder worm wheel 103 will act through the arm 113' to impart to the yarn guides a short traverse and such short traverse may be varied as desired by connecting the link 107 with the appropriate opening in the link wheel 105. Should it be desired to lay the preliminary windings or bunch upon the yarn receivers without traverse, it is only ncc essary to disconnect the bunch builder arm 113 from thebuilder arm shaft 16 and tum it out of engagement with the roll 112. On the other hand, by proper adjustment of the builder arm 113 on the builder arm shaft," the location of the bunch and the traverse imparted to the layers of yarn forming the bunch may be varied. i

A convenient way of connecting the link: 107 tothe link wheel 105 is by a pin. or screw 115.

The driving shaft 51 may be rotated from any suitable source of power and in the present instance is shown as driven by a sprocketchain 73 which readily permits the driving shaft 51 to be moved from driving connection with the service traverse mechanism. into driving connection with the bunch building mechanism, and vice versa.

Assuming that a series of fresh yarn receivers have been placed in the machine the machine attendant shifts the driving shaftfrom the position indicated in Fig. 1 to that in Fig. 1 by depression of the foot 71 of the arm 69 secured to the shaft 55, and by this. movement of the single driving shaft the worm 66 mounted thereon is operatively engaged with the bunch builder worm wheel 103 and the bunch is started with a short traverse to form the bunch near or adjacent the head portions of the yarn receivers. When the bunch has been completed it is desirable that the machine shall automatically change from the bunch building operation to the service traverse operation, and to this end an automatic latch or trip device is provided. This feature is best indicated in Fig. 1 wherein the latch 7 5 is mounted upon a support or shaft 74, and the upper portion 76 of the latch is ad-j ustably connected tothe lower portion by a slot and bolt adjusting means 77. The latch 75 has a weight supporting shoulder 78 which, when the weight 60 is raised as hereinbefore explained, is carried beneath the weight 60 by the weighted portion 79' of the latch. This feature of the invention may be substantially the same as that described in the Leonard patent hereinbefore mentioned.

When the weight 60 is engaged with the shoulder 7 8 of the latch and a reserve supply of yarn or bunch has been wound upon the yarn receivers, it isdesirable to tripv the latch automatically, and to this end the guide rods 86, which may be mounted in suitable bearings secured to the machine frame, support a slide or carriage 87 the lower face portion. of which is provided Witha series of teeth 88 1). influence of a spring maintaining it'in position, as indicated in Fig. 1; that is, to the left. Secured to the driving shaft 51 is a worm 93 which when the driving shaft is in its raised position and operatingthe bunch building mechanism, is engaged with the teeth 88 of the slide, which is thereby moved The slide is normally under the laterally to the right (Fig. 1), until upon engagement with the upper end portion of the latch 76 the shoulder 78 is removed from beneath the weight 60 and the driving shaft is automatically disengaged from the bunch building mechanism and engaged with the service traverse mechanism. It is not deemed necessary to more fully describe the details of the latch and trip mechanism thereof since these features are fully and completely described in the Leonard patent and they may be of the same general construction.

What is claimed is:

I. In a machine of the class described, the combination of a series of yarn receivers, guiding means for directing yarn to the receivers during their rotation, main traversing means for imparting service traversing movement to the yarn guiding means, bunch building means, a single driving mechanism for the main traversing means and bunch building means alternately engageable with either, and connections between the bunch building means and yarn guiding means for imparting short traverse to the yarn guiding means during the bunch building operation.

2. In a machine of the class described, the combination of a series of yarn receivers, guiding means for directing yarn to the receivers during their rotation, service traversing means for imparting service traverse to the yarn guiding means, means for suspending the operation of the service traversing means during rotation of the yarn receivers, bunch building means to lay yarn upon the yarn receivers with short traverse as the op'eration of the service traversing means is suspended and for reinstating the operation of the service traversing means as the operation of the bunch building means is suspended, a single driving mechanism for both the service and bunch building traversing means, and manually controlled means for shifting the driving mechanism alternately into driving connection with either of said two traversing means.

3. In a machine of the class described, the combination of yarn receivers, yarn guides for directing yarn to the yarn receivers, service traversing mechanism for traversing the yarn guides with long traverse, bunch building mechanism for traversing the yarn guides with short traverse, a single driving shaft for operating said two mechanisms, means for shiftingthe driving shaft alternately into operating relation with said two mechanisms during rotation of the yarn receivers, and means associated with the bunch building mechanism for changing thelength of short traverse imparted to the yarn guides in the formation of the bunch.

4-. In a machine for winding yarn upon yarn receivers, the combination of a series of yarn guides for directing yarn to the yarn receivers, a builder cam, a builder arm hearing against the builder cam for laying the yarn upon the yarn receivers with service traverse, a bunch builder mechanism for laying the yarn upon the receivers with short traverse, a single driving shaft having a worm for driving either the service traversing cam or bunch builder mechanism, means for shifting the single driving shaft to move the worm from operative relation with the builder cam and to shift the single driving shaft to move the worm into operative relation with the bunch builder mechanism that the bunch may be laid on the receivers at the head portion thereof and with short traverse.

5. In a machine for winding yarn upon yarn receivers, the combination of a series of yarn guides for directing yarn to the yarn receivers, a builder cam, a builder arm bcaring against the builder cam for laying the yarn upon the yarn receivers with service traverse, a bunch builder mechanism for laythe yarn upon the receivers with short traverse including a toothed member, a single driving shaft and gearing thereon, means for shifting the single driving shaft from .opera-tive relation with the builder cam to permit the builder arm to move the builder cam to starting position to lay the yarn upon the receivers at the head portion thereof and to shift the single driving shaft and its gearing into operative relation with the bunch builder mechanism that the bunch may be laid on the receivers at the head portion there of and with short traverse, a latch for holding the shaft and builder cam in relatively inoperative relation during the bunch building operation. and a trip for automatically tripping the latch.

6. In a machine of the class described, the combination of a series of yarn receivers, yarn guides for directing the yarn to the yarn receivers, a builder cam and builder arm for traversing the yarn guides to lay yarn upon the receivers with service traverse, a worm wheel for turning the builder cam, a bunch builder mechanism comprising a bunch builder worm wheel, a single driving shaft between tween the two worm wheels and be 'ing worm engageable with either, means for shifting the shaft to cause its worm to alternately engage one or the other of the worm wheels, a link connected to the bunch builder worm wheel, and connections between the link and builder arm for imparting short traversing movements thereto to lay the bunch with wheel for turning the builder cam, a bunch builder mechanism comprising a bunch builder worm wheel, a single driving shaft between the two worm wheels and having a worm engageable with either, means for shifting the shaft to cause its worm to alternately engage one or the other of the worm wheels, a link connected to the bunch builder worm wheel, connections between the link and builder arm for imparting short traversing movements thereto to lay the bunch with short traverse upon the yarn receivers, and means for changing the path of link movement to vary the length of short traverse of the bunch.

8. In a machine for winding yarn upon yarn receivers, the combination of a series of yarn guides, mechanism for traversing the yarn guides to lay yarn with service traverse upon the yarn receivers including a builder cam, a builder arm and a worm wheel for operating the builder cam, a bunch builder mechanism including a bunch builder worm wheel, a link operated by the bunch builder worm wheel, an arm connected to the builder arm and actuated by the link to impart short traverse to the yarn guides during the bunch building operation, means for changing the JOIIlt of connection between the link and unch builder worm wheel to vary the length of bunch building traverse, and a single drive shaft alternately shiftable into driving connection with either of said worms during rotation of the yarn receivers.

9. In a machine for laying yarn upon yarn receivers, the combination of yarn guides, service traverse mechanism for laying yarn upon the receivers with service traverse, a bunch builder mechanism comprising a rotatable toothed wheel, a link, means for connecting the link to the toothed wheel at different radial distances from its axis of rotation, an arm connected to a part of the service traverse mechanism and operated by said link, and a drive shaft shiftable alternately into operative relation with the service traverse mechanism and the toothed Wheel of the bunch builder mechanism.

10. In a machine for laying yarn upon yarn receivers, the combination of service traverse mechanism including a builder cam, a builder arm shaft, a builder arm secured to the builder arm shaft and engaging the builder cam, a bunch builder mechanism for laying yarn upon the receivers with short traverse comprising an adjustable arm secured to the builder arm shaft, means for securing the arm to the shaft in different positions, a toothed wheel supported from the machine frame, means connected to the toothed wheel and acting upon the adjustable arm to impart short traverse during the bunch building operation, and a driving shaft for alternately operating the service traverse mechanism and toothed wheel of the bunch builder mechanism.

11. In a machine of the class described, the combination of service traverse mechanism, yarn guides operated thereby for laying yarn upon yarn receivers with service traverse, a bunch builder mechanism for laying yarn upon the receivers with short traverse and comprising a toothed wheel supported by the machine frame, alink connected to the toothed wheel for operation thereby, a bell crank lever operated by the link and having a pin, an arm projecting from a part of the traverse mechanism and operated by said pin, and a driving shaft alternately movable into operative relation with the service traverse mechanism and the toothed wheel of the bunch builder mechanism.

In testimony whereof, I have signed my name to this specification.

HARRY A. LEONARD. 

